50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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* Copyright (c) 2023, Alibaba Group Holding Limited;
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#if __has_include(<expected>) && __cplusplus > 202002L
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#include <expected>
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#if __cpp_lib_expected >= 202202L
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#else
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#include <ylt/util/expected.hpp>
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#endif
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#else
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#include <ylt/util/expected.hpp>
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#endif
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namespace coro_rpc {
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#if __cpp_lib_expected >= 202202L && __cplusplus > 202002L
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template <class T, class E>
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using expected = std::expected<T, E>;
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template <class T>
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using unexpected = std::unexpected<T>;
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using unexpect_t = std::unexpect_t;
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#else
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template <class T, class E>
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using expected = tl::expected<T, E>;
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template <class T>
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using unexpected = tl::unexpected<T>;
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using unexpect_t = tl::unexpect_t;
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#endif
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template <typename T, typename rpc_protocol>
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using rpc_result = expected<T, typename rpc_protocol::rpc_error>;
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} // namespace coro_rpc
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